DTC Logic

Diagnosis Procedure
1.CHECK USB HARNESS
Visually check USB harness.
U1243 display unit
U1255 satellite radio tunerA-bag branch line circuit
Diagnosis Procedure
WARNING:
Always observe the following items for preventing accidental
activation.
- Before servicing, turn ignition switch OFF, disconnect battery negative
terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
- Never use unspecified tester or other ...
B2553 ignition relay
Description
BCM turns ON the following relays to ignition power supply to each ECU when
the ignition switch is turned
ON.
Ignition relay-1 (inside IPDM E/R)
Ignition relay-2 (inside fuse block (J/B))
Front blower motor relay
BCM checks any ignition relay ON request for consistency wi ...
System description
REFRIGERATION SYSTEM
Refrigerant Cycle
Refrigerant flow
Compressor
Pressure relief valve
Liquid tank
Refrigerant pressure sensor
Condenser
Expansion valve
Evaporator
Blower motor
High-pressure gas
High-pressure liquid
Low-pressure liquid
Low-pr ...